GIGANTOSTRACA. TITLES. 
Crust 57 
18. Mailleux, Eugene. Quelques mots sur les Trilobites du Couvinieii 
des environs de Couvin. Bull. Soc. Beige Geol. xvii, Pr.-verb. 
pp. 579-582, 1 text-fig. 
19. MuNTHE, Henr. Stratigrafiska studier ofver Gotlands silurlager. 
Geol. Foren. Stockholm Forh. xxiv, pp. 221-273, text-figg. (1902). 
Reprinted as Sveriges geol. Unders. Afh., Ser. C., No. 192. 
20. Parkinson, J. H. The zoning of the Culm in South Germany. Geol. 
Mag. (5) i, pp. 272-276. 
21. Reed, F. R. Cowper. The Lower Palceozoic Trilobites of the Girvan 
district, Ayrshire. Part ii. Pp. 49-96, pis. vii-xiii. Pal. Soc. Mon. 
Iviii, 1904. 
Quoted hereafter as Tril. Girvan ii. 
22. . Sedgwick Museum Notes. New fossils from the Haverfordwest 
district. Geol. Mag. (5) i, pp. 106-109, pi. v. 
23. . Sedgwick Museum Notes. New fossils from the Haverfordwest 
district, ii. T. c. pp. 383-388, pi. xii. 
24. Smith, Frederic F. Notes on a bicaudate sj^ecimen of Limulus 
polijphemus. Tufts Coll. Stud. No. 8, pp. 379-382, 1 text-fig. 
25. Smycka, F. Novejsi nalezy v celechovskem devonu. Vestnik Klub. 
Prostejove vii, pp. 62-72, pi. i. 
26. Walcott, Ch. D. Asaphus emoryi. Paleeontologia Universalis. 
Fasc. ii, pi. 28 & text. 
27. Walther, Johannes. Die fauna der Solnhofener Plattenkalke biono- 
misch betrachtet. Denk. Ges. Jena xi (Festschr Ernst Haeckel), 
pp. 133-214, pi. viii, 21 text-figg. 
II. SUBJECT-INDEX. 
Physiology of heart in Limulus ; Carlson (4). 
Bicaudate abnormality in Limulus ; Smith (24). 
Telson of undetermined Gigantostracan found in burial place of Bronze 
Age ; Griffith (12). 
Palceoblattina douvillei^ described as an Insect, is part of an Asaphid 
Trilobite ; Agnus (1). 
III. DISTRIBUTION. 
Jurassic, Solnhofen Limestones, Limulus ; Walther (27). 
Pala3ozoic, Niagara region, Trilohita and Eurypterida ; Grabau (11). 
Permian, Kansas, Prestwichia, n. sp. ; Beecher (2). 
Carboniferous, Lower Culm, Devonshire, Trilohita ; Hind (15) : Culm, 
Sarajevo, Trilohita, n. sp. ; Kittl (17): Culm, S. Germany, Trilohita; 
Parkinson (20) : Coal Measures, Lancashire, Xipkosura ; Bolton (3). 
Devonian, Cornwall, Trilohita ; Fox (10) : Couvin, Trilohita, n. sp. ; 
Mailleux (18) : Moravia, Trilohita ; Smycka (25) : Upper Devonian, 
Condroz, Eurypterida ; Destinez (7) : Middle Devonian, " Iberger kalk," 
Trilohita ; Harbort (13). 
Silurian and Cambrian, Kinnekulle, Sweden, Trilohita ; Holm (16). 
Silurian, Trilohita ; Walcott (26) : Haverfordwest, Trilohita, n. sp. ; 
Reed (22) : Haverfordwest, Trilohita ; Reed (23) : Silurian, Girvan, 
Ayrshire, Trilohita, n. spp. ; Reed (21) : Gothland, Trilohita, Eurypterida ; 
